Weigh and prepare Ingredients. Brush inside of the molds with melted butter using vertical strokes then place in fridge for a minute. remove then repeat the brushing. Once double coated in butter, coat the insides with a teaspoon of cocoa powder, removing any residual powder from each mould to reduce wastage. Place in fridge until ready to fill with fondant batter.
Roughly break chocolate into pieces into a bowl and place with butter over a saucepan of barely simmering water until fully melted. Once fully melted, remove the bowl from the heat and leave to cool until tepid whilst you whisk the eggs and sugar
Using a stand mixer ( or hand mixer) whisk the whole eggs, yolks, vanilla and sugar togethor until pale, thick and roughly doubled in volume and whisk leaves a trail.
Fold flour in to the egg mixture until fully combined
Once the flour is incorporated, add the chocolate mixture and fold untillfully incorporated
Divide the mixture evenly between the 4 moulds and tap the moulds on a flat surface gently to ensure the mixtures has no air bubbles an fills the entire mould. Place in fridge for a minimum of 30 minutes before baking. Bake in the oven at 200 degrees for 12-14 minutes.
Carefully invert the puddings out from the mould into a clean tea towel and plate gently. Dust with cocoa powder or icing sugar.